package com.tgy.nowcoder;

import java.util.Stack;

public class NC52_括号序列 {

    /**
     *
     * @param s string字符串
     * @return bool布尔型
     */
    public boolean isValid (String s) {
        // write code here

        char[] chars = s.toCharArray();

        Stack<Character> stack = new Stack<>();

        


        return true;
    }
}
